I’ve already posted a quick comparison on this thread, but I decided that I’d better start my own thread so I don’t hijack that one!

This is the same RAW file processed with Adobe PhotoshopLightroom 5.7, and RAWTherapee 4.2.1. First, here’s an un-edited shot exported from Lightroom…

(Click on any photo to open in Flickr, where you can view at 100%, or download to view at your convenience with your favorite software. You can use FastStone Image Viewer to compare 2 photos side-by-side if you wish.)

Next, the edited photo from Lightroom…

And finally, the edited photo from RAWTherapee!

Now, if you compare this comparison to my last one, these two photos are a lot more similar. I did set the blue/yellow WB to be the same in both programs, to keep the color tint about the same. (I don’t know whether green/purple is the same, but I don’t think it is.)

Sharpening (Radius): +0.63 (or +1.6, I’m not sure which slider value to put, so I’ll put them both. The +1.6 value is for “Edges” so I think it’s the one equivalent to Lightroom’s.

(Obviously the 2 different programs use different methods, so you can’t really compare “numbers” when moving sliders) I rather like RAWTherapee’s sharpening better than Lightroom, maybe it’s just my method of sharpening, but Lightroom seems to create an awful lot of sharpening artifacts. Actually, compared side-by-side, RAWTherapee’s output looks slightly soft, but it looks a lot “cleaner”.

@jamesstaddon, you’ve got 2 options for sharpening in RT, Unsharp Mask, and RL Deconvolution. I have very little experience with either one, as I am still using LR for everything… I imagine that the Unsharp Mask would be very similar to the tool with the same name in Photoshop, so you shouldn’t have much trouble figuring it out! 🙂

One of the main differences is that Lightroom is made to be easy to use. It’s tools are all laid out in a sequential way, in the order that most people would use them.
RAWTherapee on the other hand aims to cover all the bases. There is often more than one way to do certain edits. Different algorithms give different results, depending on the situation. Consequently, RT has every tool they can think of. While that’s great, it does make it very confusing for a new user who is trying to figure out how to do a basic adjustment to a RAW file.

How do you guys find Raw Therapee’s cataloguing system as related to LR’s? I have briefly tried DarkTable and was seriously unimpressed. RT’s name is so cheesy it’s so hard to take seriously I’ve not even tried it yet. I may though someday. I will probably go to C1P someday, I have had three separate month trials. 😀 I was seriously impressed by the program, and just as depressed by the price.

@loganlamar, I honestly have no idea, I’ve never used the RAW capabilities of it, since I still own a copy of Lightroom. You can get a free trial of Affinity and try it for yourself if you’d like! (Beware, if you’re anything like me, you’ll end up buying after the free trial is over. 🙂 )

@nasa, I can’t say 100% for sure, but I think that’s the way it is. (I prefer that method personally, but I’m sure others like the database cataloguing system better.)